Level-stand.



H. STAMPS.

LEVEL STAND. APPLIoATIoN Hmm` mxo. 27. 1910.

H. STAMPS.

LEVEL STAND.

uP-LIoATIoN FILED DBO. 27, 1910.

Patllted July 2, 1912.

2 SHEETS-SHEET 2.

HENRY srAMPs, or CHICAGO, ILLINOIS.-

LEVEL-STAND.

Application tiled December 2 To oZZ whom 'it may concern:

Be it known that I, HENRY STAMPS, a eitizen of the the city of'Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Level-Stands, of which the following is a specification.

Iy invention relates to improvements in level stands and has for its object the provision of a level stand of simple construction and eflicient'in operation. p

My invention consists in the combination and arrangement of parts hereinafter described and claimed.

My invention will be best understood by reference to the accompanying drawings forming a part of the specification, and in which,

Figure l is an end elevation of a level stand embodying my invention and showingl a leveling tube partially in section supported thereon, Fior., 2 is a top plan view corresponding to Fig. 1, and Fig. 3 is 'a section on line -m of'Fig. 2 with the level omitted.

The preferred form of construction as illustrated in the drawings comprises a lower supporting table 1 provided with an upwardly extending central pin 2. Upwardly ext-ending leveling screws 3 are threaded in said table at points equally distant from the center of said table and from each other, in other words at the four cor` ners of a square having the center ot' said table as its center. An `upper supporting table 5 is supported on the vupper ends of screws 3, recesses 6 beingr formed in the bottom thereof for the reception 'of the balls 4 and said upper table is provided with a center aperture 7 adapted to fit over pin 2 as shown. Supporting table 5 is provided with leveling glasses or tubes 8 and t) arranged at right angles to each other and parallel to lines connecting' opposite screws 3. By use of screws 3 and leveling glasses 8 and 9, it will be seen, that table may be readily brought t0 a true level the relative arrangement of said tubes and screws materially assisting in this.

The stand is designed ior use in conjunction with a leveling tube 1() having a sighting channel 11 therein which is provided at Specicati'on of Letters Patent.

United Sta-tes, and a resident of extending but Patented July 2, 1912.

7, 1910. Serial No. 599,491.

its inner -end -with ranged under a sight opening-13 as shown.

Frames 14; containing` alining cross hairs are arrangod'in tube 1l for assisting in taking a sight which, it will be observed, is taken from above tube 10 with said tube resting upon supporting table 5.

Supporting table 1 is downwardly extending central p stand 15 threaded thereto as indicated.

Stand 15 provided with a i carries three equal spaced downwardly/'extending tapered sockets 16 threaded tlierein as shown. The upper portions 17 of supporting logs are nicely tted to these sockets at their upper telescope tubes 18 which constitute the lower portions of thesupporting legs and are provided with points 19 for engagement with the ground. Each of thel tubes 18 is provided with a longitudinal slot 20 and each of the leg portions 17 is provided With al threaded bolt 21 extending outwardly through said slot and carrying a wingednut 22 adapted to clamp said leg portions in adjusted positions. `With this construction it will be observed that the supporting legs may he readily removed and collapsed for packing into small space. t

While I have illustrated and described the preferred form of construction for carrying niy invention into effect this is capable of variation or modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the exact details set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim..

llaving described my invention what `l' claim as new and desire to secure by Letters latcnt is:

.t level stand comprising a lower supporting table; leveling screws threaded in said table and projecting upwardly therefrom, said screws being provided with balls at their upper ends; a pin extending upwardly trom the center of said table; an upper supporting table loosely resting upon said balls, and having a cmltral aperture loosely fitting over said pin, depressions in the bottom thereof receiving saidA balls and said pin part way through said aperture, the arrangement being euc'h tha the name to this specicatorl in the presence 0; upper Supporting table is entlrely free o two ubscrbing Witnesses. f n ready removal fromv said lower table' an l, leveling tubes set in the upper surface of HENRY STAMPS said' upper table at right angles to each other, substantially as described.

-In testimony whereof I have signed my Witnesses: e

FmRENoEE. L1LL1s,' JPSHUA R. HuPoTTs. 

